Vulcanizer



Api@ ma. mmm-6 Q J. KUHQ VULCANI 2ER File 00V- 6. 1923 3 Sheecs-'Sheeiz l hmm Hinz.

VULCVANI ZER Filed Oct. 6, 1925 5 Sheets-Sheet 2 ,fi/Q2.

I 3mm/Ufo@ OTTO J'. MJHLKE, 532%@ April 9 QZ.

O. J. KUHLKE VULCANI ZER Filed Oct, 5, y1923 .5 Sheets-Sheet 1 vom/x hw (ffm f Mmm,

Patented Apr. 6, 1926.

,j UNITED STATES @PATENT carica.-

OTTO J. KUHLKE, OF AKRON, OHIO, SSIGNOR TO THE-KUELKE MACHINE COMPANY,

F AKRON, OHIO, A CORPORATION DE 0&9.

vnriennr'ania.

Application med october 1923. Serial No. '$86,827.

y To aZZ i12/wm it 'may concern.'

i Be it known that I, OTTO J. Kumara, a. citizen of the United States, and a resident of Akron, county of Summit, State of Ohio,

have invented certain new and useful Improvements in Vulcanizers, of Which the 0llowing is a specification-` This invention relates to apparatus for use in the vulcanization of articles of rubber or 1o rubber and fabric and While it is adapted for general use, it is here shown as designed and intended for the vulcaniaation of tire flaps such as used in the casings of pneumatic tires.

i5 Thel object of the invention is to im rove upon apparatus previousl in genera use for this purpose, to enable the iap'to be manufactured more efiiciently, to obtain better v,results and to'improve the manufacture of these articles by obtaining even pressure throughout the ilap, eliminating Waste, trimming and other disadvantages in present methods of molding flaps'. 4

In the drawings is shown one embodiment of the invention,l it being understood that suoli showing is illustrative merely and that other forms and modications may be de signed for accomplishing the purposes of the invention. Y

In the drawings:

vFigure l is a side elevation of the vul canizer in closed position, or in the positiorl in` which it is used during the vulcanization of the article;

Figure 2 is a similar View with the vulcanizer opened to remove the cured article and to refill; and

Figure 3' is a vertical section on the line 3--3 of Figure l.

40 In the drawings the vulcanizer is supported upon a stand or bracket 10 which is of suitable height and to the upper end of which is Afastened the. hollow, steam heated form or mold 11, the chamber` l2 of whichv isy designed to receive a heating medium such as steam introduced and circulated through 4pipe openings 13. e

The form is shown as circular, although it will be understood that such shape is not.

essential and may be modifiedV to other forms. Its outersurface is'provided with a cavity 14, the cross section of which is shown as designed to mold a tire ap, although other shapes maybe 0riven' to the cavity to form other articles.-

'material to be vu he tireap,

which is formed of rubber or rubber and fabric, is designated by the numeral 16.

Around the outside of the mold is arranged the jacket 17 which is preferably in three arc-shaped segments or sections, 17, l'band 17C, the section 17 being connected to the adjacent sections by hinges 18. The section 17" is provided at its lowermost point with a platey 19.*vvhicli is slidably received over a `post or, ide pin 20 projecting upivardlyI from th,- oase 10.

At their lupper ends the sections 17 and 17 are provided with lugs 21 to which are pivoted arms 22 that are journaled at 'opposite points 23 on the inner circumference of the mold. 'With the arms are formed angular continuatioxis 24 which are in the forni of intermeshin gear segments 25. One of the 'shafts 231s extended tothe 0p positc side of the mold and is provided with an operating hand lever 26. When the hand i lever is rocked sa as to bring the jacket into the position shown iii Figure I1, the jacket closely surroun@ the outside of the mold and may be secured in that position by an suitable form of clampinfir plate or lock, i lustrated in this application as the lock 27. When the hand lever is rocked, the two 4arms `22 move apart in unison until they reach the position shown in Figure 2, at which point'the jacket or coveris opened and lowered away from the form which is thus left open-around its entire circumference on one side -so that it is readily accessible to the .I Workman. The jacket is maintained in open position by means of adjustable collar 28 on the post 20 on which the jacket will rest when in expanded position.

In order to shape thetire flap, or other canized, I prefer to employ an expansible air ban 30 which is fastened to the inside of the jacket, the ends of the air bag being preferably formed on a bevel so as to overlap, the construction being indicatedin Figure 2. The air bag may be made .in any may be inflated through'a suitable valve 3l and is attached to the jacket in any manner so that it is permanently located thereon. A strip ot fabric 29 may be interposed be* tween the bag and the jacket by means of which the bag is securedn position.

Well known manner of `rubber or rubber and fabric Theyair bag lany suitable stop. I have shown here an Theopeletion ci the device is foiiovvs:

The mold being open us shown in Figuie 2, the operator isys Within `the incid the nml terai which is to he vuicsnized, either in en endless band ci split ct one point. The jacket is then closed 'oy the operation of the hand lever and cninpec together. The aix' heg is iniisteci and the. materiali vnicnnizeci by the heat circuisted throughthc moi?. After heilig cur'cti, the apparatus is opened up and the cnreci material removei.

it is obvious that the invention 1s not necessarily iimted to enact conformance with Jthe details as hve heen shown and ciescxiheci, but may he varied Within the scope of the claims as setting forth the invention. Modifications anni adepte? ions of the i' vehti'on would suggest themselves to those skilled in the crt Without departure 'from the essential ieatuies ci' the invention.

v n an sppsictus of the character described, the combination of n Inoki, e jacket to surround the outer circumference of the incid, the jacket being hinged to expand and coniect, end mechanism connected to the moifi and to the jacket to move it to ein pended ccnfiition.

in en apparatus of the character desciihed, the combination. of e. molti having a vuicenising; cavity thevein. e hinged jacket sucrou'nciing the inoi,e.n mechanism connectei with thejccke'tto expand and move it outvverdiy from encrclin position about ihe entire ciccumeence of c te moisi.

' 3. in un apparatus of the diameter described, the combination of e meid having o vuicanizing cavity about its circumfer ence, s. hinged jacket surrounding the mold, and means connected with the tivo ends of the jacket to expend sufi move them out,-A

vvarciiy from theinposition about the entire circumecence of he incid and to restore them to clamping position.

s. in. cn apparatus of the character descrihef, the combination' of a mold having n. vuic-enizing cavity therein, a mutiple piece jacket hing'cfi together and adapted to sni'iound` the mold, and lever mechanism connected to opposiua points on the jacket and. eciapted' to expand and contract the jcciietund shift its position with respecz to.

the nichtz 5. in en apparatus ci the character descrihe, the combination of a form havingV a ,croc-veci vuicanizngj surface on its periphely, e jacket comprising a. piuraiity of segments, and means to expan the jacket and simuitnncousiy thei'evvith to remove it hfrom Contact with the foim.

y 6. in an apparatus of the character described, the combination of s vertical' forni having n grooveci vuiccnizing cavity on its periphery, c segmental jacket, Ineens to exipandthe jacket and. simuitancousiy thenccomme sciiheci, 'the combination of s. circular nioiti, i

vmeans to heet the moisi, an expensibie jacket surrounding; the mold, and means connected .to the jccie end to the mold to expend the jacket.

9. in on apparat-us of the character desciibed, the combination of s stetionevyv incid, e covei' for the mold constructed. in a plurality of segments hingediy connecteci together out separable et its ends, levers conneetcd to the ends of the cover, and gearing to move seid levens in unison, the levers hcing pivoted upon the molti in position to espcnd and Conil-ect the cover.

10. in e vuicanizei, e stationery circuler mold, ineens foi: heating the mold, the incid having s. vulcsnizing surface .on its outer periphery, a jacket. constructed in s, pini'eb" ity of segments hiugedly connected together out separable et. its ends, levers connecte to the ends of the coverv and pivoted on the mold, mici intermeshing gearing connectin said levers for unitary movement tower and away from the mold.

vll. An appaietus for curing endless tiro eps which ere substsntieily 'if-shaped in cross section, the apparatus comprising s, centmi circuicr form having' c groove therein in which the ep is vuiccnized, a sectionsi jacket surrounding the form and having` a. projecting formation :adapted to entei` the groove, ineens to heat the apparatus to vulcanizc the ap, ineens to expend the jacket .and simultaneously therewith to remove ih from contact With the form, and meansto subject the sp'to Huid pressure during the vnicanizing process.

12. In e vuicenicing apparatus, a stationary mold having a vulcanizing surface thereon, a hinged expcnsibic jacket abou@ the mold, und en 'expansible ressure chamber permanently' attached to t, e inner circumference of the jacket.

13. in s. vuicanizn 7 apparatus, e stations ary mold having c vu canizing surface thereon, s hinged expansibie'jecket having lever mechanism to operate it connected to theV mold, and c. finiti expansihechember cerried bv. the jacket and movable therewith tower and sway from the mold.

- 1A. In e vuicanizing apparatus, e stationsry mold having s vulccnizine surface thereon, .e hinged expsnsihle jacket having level` mechanism to open it cmi support it in open los position spaced from themold, d a fluid expansible chamber carried by t e jacket and movable therewith toward and away from the mold. p

15. In a vulcanizing apparatus, a mold, a jacket surrounding;` the mold, the jac et be ing expansible toward and away from the mold, lever mechanism to expand the jacket and support it in spaced relation about the mold, and a duid expansible chamber associated with the said apparatus to exert pressure upon theobject being molded therein.

16. In a vulcanizing apparatus for the manufacture ot' tire flaps, an inner ringshaped member having a substantially VL shaped cavity therein, an outer member adapted to surround the other member and having a projectingr surface thereon adapted to be received within the cavity, one of said members being` formed in parts so as to permit placement and removal o the tire flap, and means to open last name member and simultaneously therewith to remove it from c ontact with the other.

1T. In a vulcanizing apparatus for the manufacture of tire flaps, an inner ringshaped me1nber' having a substantially V- shaped cavity therein,v an outer member adapted to surround the other' member and having a projecting surface thereonadapted to be received within the cavity, one -o said members being' formed in parts, means to open the last named member and remove it mold and adapted to part at -a single point` a clamping device to hold the ends of the jacket together during the vulcanizing operation. and mechanism assoc'atedwith the jacket for simultaneously opening the jacket and movingr it away from the mold about the entire circumference thereof.

19. In an apparatus of the character described` the combination of a mold having a vulcanizing cavity about its outer circumfern ence, a hinged jacket surrounding the mold and adapted to part at a single point, and mechanism associated with the jacket for opening the jacket and moving it away from the mold about the entire circumference thereof. 'I

20. In an apparatus of the character described, the combination of a vertical mold having, a vulcanizing cavity about its outer circumference, a sectional jacket surrounding the mold, and means to open the jacket and lower it away from the mold so that it is out of contact therewith.

OTTO J. KUHLKE. 

